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요부-골반-고관절 복합체의 생체역학 -천장관절 기능부전과 관련하여-
윤홍일,심현보,이준용,Yoon, Hong-Il,Sim, Hyun-Po,Lee, Jun-Yong 대한정형도수물리치료학회 2013 대한정형도수물리치료학회지 Vol.19 No.1
The pelvic girdle function as an integrated unit with all three bones moving at all three joints, are influenced by the lower extremities below and vertebral column and trunk above sacroiliac movements are caused by spinal motion, whereas iliosacral movements are caused by movements of the lower limbs. Concept of normal functional integration among the lumbar spine, pelvic and hip joint is basic to the understanding of dysfunction in this region and also functional movement of the lumbo-pelvic-hip region are part of the clinical examination, consequently the integrated biomechanics of these region need to be understood. The purpose of this review is to ascertain the integrated biomechanics among the lumbo-pelvic-hip complex by consideration of literature and to give sufficient information to be able to render accurate assessment and treatment for the syndromes described.
윤홍일 대한정형물리치료학회 2002 대한정형도수물리치료학회지 Vol.8 No.1
This study is aimed to find out and define how the muscular-skeletal pain of the Aged, according to their residential circumstance, sex and age, can affect the subjective health index and how all these are related and associated with. For the period of June 1 to July 31, 2001, in order to study and define how the muscular-skeletal pain are related to the subjective health index of the Aged, we have conducted an enquete through a direct interview with 693 persons over age sixty-five (65) in Daejon and in other adjacent areas, divided into three different residential types "The Aged living at home", "The Aged living at welfare facilities" and "The Aged living alone". The study concludes followings : 1. Generally, muscular-skeletal pain and the subjective health index of the Aged, are a lot influenced by and related to their residential circumstance, their sex and their age. 2. With regard to the muscular-skeletal pain of the Aged by their sex, it was analyzed that, on an average, the female-Aged gains 3.0 point and the female-Aged suffers from this pain more severely. In analyzing this pain by their residential type, it was found that, on an average, the 3.0 point goes for "the Aged living alone", Which explains the Aged living alone is having the most serious pain. 3. With regard to the subjective heath index of the all Aged participated in this research, the analysis indicates 8.8 point and this is considered as a general standard (7-10 point). In analyzing this index by their sex, the female-Aged gains 8.6 point only and it explains a lot of female-Aged consider they are not really healthy. In analyzing this index by their residential type, "the Aged living at welfare facilities" and "the Aged living alone" gain the comparatively lower point, - respectively 8.4 point for the Aged living at welfare facilities and 8.8 point for the Aged living alone. The Aged of these two residential types express they are obviously in a bad condition of health, which makes us think a lot.
윤홍일,김창현,황창규 한국전기전자재료학회 2000 전기전자재료 Vol.13 No.12
Over the years of decades, the memory technology has progressed a long, marble way. As we have evidenced from the Intel's 1Kb DRAM in 1970 to the Gigabit era of 2000's, the road further ahead towards the Terabit era will be unfolded. The technology once perceived inconceivable is in realization today, and similarly roadblocks as we know of today mayvecome trivial issues for tomorrow. For the inquiring mind, the question is how the "puzzle"of tomorrow's memory technology is pieced-in today. The process will take place both in evolutionary and revolutionary ways. Among these, note-worthy are the changes in DRAM architecture and the cell process technology. In this paper, some technical approaches will be discussed to bring these aspects into a general overview and a per-spective with possibilities for the new memory technology will be presented.presented.
윤홍일,Yoon, Hong-Il 대한물리치료과학회 1997 대한물리치료과학회지 Vol.4 No.4
Rehabilitation after spinal cord injury(SCI) is complex process involving an array of adaptation to change in both physical and psychological function. It is generally accepted that psychological disorder and change are sificant psychological problem among the patients with spinal cord injury. The psychological problems that they have are depressor, anxiety, and fear etc. This study was designed to know of psychological state of patients with SCI after injury, such as psychological change and adaptation process, and change of needs.
스테레오 카메라를 이용한 측두하악관절 교정장치(NO SICK)의 성능 평가
윤홍일(Yun, Hong-Ii),박준수(Park, Joon-Su),정구영(Chung, Koo-Yeong),신기영(Shin, Ki-Young),박준기(Park, Joon-Ki) 한국정보전자통신기술학회 2015 한국정보전자통신기술학회논문지 Vol.8 No.5
카이로프래틱 치료에서 측두하악관절(TMJ)는 인체의 균형을 유지하는데 중요한 역할을 하는 관절로서 구강내 교정장치를 통해 인체의 균형을 교정할 수 있게 된다. 현재 이러한 구강내 교정장치의 효과를 스테레오비전을 이용하여 정량적으로 평가할 수 있는 측정 장치가 없었기 때문에 본 연구에서는 이를 측정 할 수 있는 시스템을 개발하였다. 이 시스템은 스테레오 비전과 적외선 조명, 적외선 통과 필터 등으로 구성되어 있으며, 광학식 마커를 피험자의 주요 부위에 부착하여야 한다. 마커의 부착위치는 얼굴의 주요 랜드 마커 중 구강내 교정장치의 착용으로 인해 변화가 나타날 수 있는 8개의 부위를 선택하였다. 개발된 시스템을 이용하여 11명의 피험자를 대상으로 교정장치 착용 전/후 마커의 변화량을 측정하였을 때, 피험자의 얼굴에 부착된 마커의 위치 변화가 정량적으로 측정되었다. TMJ(TemporoMandibular Joint) is considered as the most important articulation in human body for maintaining the balance. Thus it is one of the main treatment areas in Chiropractic. Instead of Chiropractic treatment, NOSICK, a TMJ balancing device, can be used. As there is no such device to quantify the effect of NOSICK, a system was developed to measure the effect of NOSICK. This system is composed of stereo vision, infrared lights, and infrared through filter, etc. It requires optical markers for the measurement. 8 land markers were selected from the face which will show different displacement as NOSICK is applied. 11 test subjects were measured with the system developed with and without NOSICK applied. Quantifiable displacement of markers before and after applying NOSICK was successfully measured with the system developed.
이동무선 LAN 시스템의 고속핸드오버를 위해 능동적인 유효채널탐색방식의 성능분석
윤홍,임재명,윤종호,김세한 대한전자공학회 2006 電子工學會論文誌-TC (Telecommunications) Vol.43 No.11
In this paper, we propose a new Active Channel Scanning scheme by scanning active channels employed by neighbor APs' with the handover counts and non overlap channel information for fast handover. Under the proposed scheme, the mobile which has finished handover to connect a new APsends the neighbor AP's channel information learned by itself during handover to the new AP. And then, the new AP relays the neighbor channel information to the old AP. It decides a priority by handover counts and non overlap channel information for building a Neighbor Channel Table(NCT), and also sends the table information to its associated mobile nodes, periodically . As a result, each mobile can scan only active neighbor APs' channels when performs handover based on the referring to NCT information. Using NS-2 Simulator, we applied to supposed ACS that the result of simulation decides to sort by handover counts and non overlap channel information. we evaluate our proposed ACS scheme based on NCT along with the full scanning scheme and the selective scanning scheme. From simulation results, we show that the proposed scheme is advantageous over the other two schemes in terms of the number of scanning channels and the scanning latency. 본 논문에서는 무선LAN환경에서의 신속한 핸드오버를 지원하기 위하여 핸드오버 횟수와 인접한 AP간 겹쳐지는 영역의 유무를 고려하여 주변 AP가 실제 사용하고 있는 유효채널만을 탐색하는 새로운 방식을 제안한다. 제안된 방식에서는 이동단말이 새로운 AP로의 핸드오버가 완료되면, 자신이 탐색과정에서 습득한 주변 AP의 유효 채널정보를 새로운 AP에게 보고한다. 해당 AP는 이 정보를 이전 AP에게 전달하고, 핸드오버 횟수와 인접한 AP간에 겹쳐지는 구간이 없는 셀의 정보를 고려하여 우선순위를 결정한 이전 AP는 유효채널정보를 정렬한 후, 이 채널정보를 자신에 접속된 단말들에게 주기적으로 통보한다. 이러한 절차에 의해, 기존 AP에 접속된 나머지 단말들은 자신이 핸드오버 할 경우 인접 AP가 사용하는 활성화되어 있는 채널만 탐색할 수 있기 때문에 보다 신속한 핸드오버가 가능하게 된다. NS-2 시뮬레이터를 사용하여, 핸드오버 횟수와 인접한 AP가 겹쳐지는 구간이 없는 셀의 정보를 고려한 우선순위선정 방법에 대한 모의실험을 수행하여 최적화된 우선순위방식을 제안된 유효채널탐색 방법에 적용하였다. 이 제안방식과 인접한 모든 채널을 탐색하는 기존의 full scanning 그리고, 미리 정해진 순서에 따라 일부 채널만 탐색하는 selective scanning 방식 등 3가지에 대한 성능비교를 수행한 결과, 제안된 방식이 핸드오버 과정에서 수행하는 전체 탐색채널의 개수와 채널탐색시간 면에서 우수함을 보였다.